Sources of .358 Hoosier Rifles, Barrels, Ammo, etc.

Thanks. I updated the MGM information to show they also make barrels for bolt actions. As you noted, they can also install the bolt action barrels. As always, potential customers need to check with suppliers to get details of what services they offer.

The following includes some updated information recently sent to known suppliers of rifles, barrels, and ammunition for the .358 Hoosier:

Because of the continuing shortage of .358 Winchester brass (the original parent case of the .358 Hoosier) many owners of existing .358 Hoosier rifles and barrels are forced to use various brands of .308 Winchester commercial brass to make Hoosier cases. Some (not all) of this brass is a little too thick in the neck area to chamber in existing rifles without first outside neck turning the formed brass. In order to make it easier to use commercial .308 Winchester brass as the parent case (and not needing to neck turn the brass) in future barrels, Pacific Tool and Gauge has made a modification to the finish chamber reamer that they produce. The headspace and other dimensions stay the same, but the neck diameter is increased about .004 inches. Also, about .020 inches longer freebore is used in the latest version of the .358 Hoosier to better accommodate slightly longer overall cartridge lengths. The finish reamer Print Number is D-32464.

It has been requested that future .358 Hoosier barrels be chambered with the latest reamer dimensions. However, if or when a supplier does this is strictly up to them. The same thing holds true regarding possibly “opening up” some existing chambers to the new dimensions. As you know, the cartridge and all that goes with it are in the public domain.

There still exists the caution regarding surplus military .308 (7.62 X 51 NATO) brass. It may have thicker case walls and necks than commercial brass and a somewhat smaller powder capacity. Also, some of it may have been fired in machine guns having very “generous “ chambers (which can make initial resizing more difficult).

winchester 308 brass is the best for the necking up to 358. no turning required.

That would not surprise me. Had a guy bring me his rifle to look at because he found out I was playing around with the Hoosier. He could not even get the ammo that they made to chamber in the rifle they converted for him.

Not sure what the specific issue was. I tried to get some of my ammo to chamber and it would not either. I just handed him the rifle back and told him to return it and did not inspect it further. I suspected that the receiver had moved when they went to tighten the barrel nut and they had not checked chambering after assembly.

Sounds like improper headspace, and also poor quality control.

I reload 358 Hoosier. I have to be careful to use the correct shellholder, as one will not get the shoulder as far back as it needs to be to chamber easily. It will still chamber but takes more effort than I like. Switch to the proper shellholder and the bolt handle drops in like it should.

I'm not saying the OP's problem can be fixed with a different shellholder (sounds like he's not reloading anyway), because the ammo came from the same folks that set the rifle up, and Omega's ammo wouldn't work either.

Hopefully the maker fixes the issue free of charge!

You'll most likely have to make (Form) your cases for your .358 Hoosier, unless some ammunition company decides to load it.  I'd suggest that you use RCBS forming dies, and .358 Winchester brass (IF you can find some).

Where are you located? That will help to recommend where to look for ammo.

AJ and Phoenix are southern IN and seems to me that maybe the place in Wabash was doing Hoosier ammo?

I called Hornady and got my dies from them. They work fine!

Your lucky ,mine took 6 weeks to get.